incorporating highly non-linear metal oxide varistor, with a discharge rated current of 10 kA. The housing can be polimeric arresters are tested in accordance with the lastest standard ANSI/IEEE C62.11 for metal oxide

arresters, and also with IEC 60099-4.

They consistently withstand the following

minimum type test:

* High Current-Short duration: 2

current surges of 100 kA-crest magnitude

20 shoots of 100 kA amplitude.

* Low Current-Long duration: 20

shoots (or impulses) of 250 A amplitude

and 2.000 μs duration.

* Duty Cycle: 20 discharges with a

current surge of 10 kA magnitude and

8/20 μs wave shape followed by 2 discharges

with a current surge of 100 kA

magnitude.

Item

Description

Units

33kV

Required

GuaranteedValue

1

Type

Metal Oxide, Gapless

Metal Oxide, Gapless

2

Material

Polymeric

Polymeric

3

Nominal System Volt rating

kV

33

33

4

Maximum System rating

kV

36

36

5

Power Frequency

Hz

50

50

6

Peak Voltage rating: Ur

kV

30

30

7

Maximum Voltage rating: Uc

kV

21kV

21kV

6

One minute power frequency withstand voltage

kV

70

70

7

Basic Insulation level

kVp

170

170

8

Specific creepage distance

mm/kV

25

25

9

Nominal Discharge Current with 8/20 microsecond wave

kA

10

10

10

Fittings and Accessories-Fasteners for stacking units along with clamp & terminal connectors.

High-Current Short Duration: 2 current surges of 65kA magnitude and 4/10μs wave shape.Low-Current Long Duration : 20 current surges of 75 A magnitude and 2000μs duration .1 MCOV=Maximum Continuous Operating Voltage that may be applied continuously between the terminals of the arrester.2 The equivalent Front-of -Wave is the maximum discharge voltage for a 5kA impulse current wave which produces a voltage wave cresting in 0.35μs. 3 Based on a switching surge current impulse of 45×90μs, 500 amperes.4 The equivalent Front-of-Wave is the maximum discharge voltage for a 10kA impulse current wave which produces a voltage wave cresting in 0.5μs.ZINC OXIDE PROTECTIVE CHARACTERISTICS (10kA NORMAL DUTY POLYMER)

Voltage Rating (Ur)(kVrms)

MCOV(UC)1(kVrms)

Max.Equiv.FOW4(kV Crest)

Max. SwitchSurge3(kV Crest)

Max .Discharge voltage (kV Crest)Using 8/20μs Current Impulse

1.5 kA

2.5 kA

3.0 kA

5.0 kA

10 kA

20 kA

40 kA

3

2.55

10.4

7.8

8.5

8.8

8.9

9.3

9.9

10.9

12.4

6

5.10

20.7

15.5

16.9

17.5

17.7

18.6

19.8

21.8

24.7

9

7.65

31.0

23.3

25.4

26.2

26.6

27.9

29.7

32.7

37.0

10

8.40

34.5

25.9

28.2

29.1

29.5

31.0

33.0

36.3

41.1

12

10.20

41.3

31.0

33.8

34.9

35.4

37.2

39.6

43.5

49.3

15

12.70

51.7

38.8

42.2

43.6

44.2

46.5

49.5

54.4

61.6

18

15.30

62.0

46.5

50.7

52.3

53.1

55.8

59.4

65.3

73.9

21

17.00

72.3

54.3

59.1

61.0

61.9

65.14

69.3

76.2

86.2

24

19.50

82.6

62.1

67.6

69.7

70.9

74.4

79.2

87.0

98.5

27

22.00

92.9

69.8

76.0

78.4

79.6

83.7

89.1

97.9

110.8

30

24.40

103.3

77.6

84.4

87.1

88.4

93.0

99.0

108.8

123.1

33

26.80

113.7

85.4

92.8

95.8

97.3

102.3

108.9

119.7

135.4

36

30.00

123.9

93.1

101.3

104.5

106.0

111.6

118.8

130.6

147.7

High-Current Short Duration: 2 current surges of 65kA magnitude and 4/10μs wave shape.Low-Current Long Duration : 20 current surges of 75 A magnitude and 2000μs duration .1 MCOV=Maximum Continuous Operating Voltage that may be applied continuously between the terminals of the arrester.2 The equivalent Front-of -Wave is the maximum discharge voltage for a 5kA impulse current wave which produces a voltage wave cresting in 0.5μs. 3 Based on a switching surge current impulse of 45×90μs, 500 amperes.4 The equivalent Front-of-Wave is the maximum discharge voltage for a 10kA impulse current wave which produces a voltage wave cresting in 0.5μs.

3.APPLICATION CONDITION3.1 Normal Service condition Surge arresters which conform to this standard shall be suitable for normal operation under the following normal service conditions:Ambient air temperature within the range of -40ºC to +40ºC.Solar radiation :The effects of maximum solar radiation (1.1kW/m2)have been taken into account by preheating the test specimen in the type tests. If there are other heat sources near the arrester, the application of the arrester shall be subject to an agreement between the manufacturer and the purchaser.Altitude is not exceeding 1000m.Frequency of the A.C power supply is not less than 48Hz but not more than 62HZ.Power frequency voltage applied continuously between the terminals of the arrester is not exceeding its continuous operating voltage.Mechanical conditions ;no strong vibration.Pollution conditions: no requirement at this time.

3.2 Abnormal Service ConditionsSurge arresters subject to other than normal application or service conditions may require special consideration in design, manufacture or application. The use of this standard in case of abnormal service conditions is subject to agreement between the manufacturer and the purchaser.

4 OVERALLDIMENSIONS

5kA NORMAL DUTY POLYMER

RatedVoltage

3

6

9

10

12

15

18

21

24

27

30

33

36

A

98mm

B

68mm

C

200

246

246

246

246

302

350

350

350

420

420

480

480

D

138mm

CreepageDistance

180

390

390

390

365

500

660

660

700

890

890

970

1100

10kA NORMAL DUTY POLYMER

RatedVoltage

3

6

9

10

12

15

18

21

24

27

30

33

36

A

106mm

B

78mm

C

200

246

246

246

246

302

350

350

350

420

420

480

480

D

138mm

CreepageDistance

180

390

390

390

365

500

660

660

700

890

890

970

1100

5. INSTALLATION AND PRECAUTION5.1 The surge arrester is fixed to the supporting structure by fitting-bracket, and connecting its top terminal to H V wire of electrical apparatus ,which is protected ,with 8-16 mm2 copper wire, connecting its chassis cover to the terminal of operation counter, connecting the other terminal of operation counter to the ground wire, or connecting its chassis cover to the ground directly. 5.2 The surge arrester should be lain close to the electrical apparatus, which is protected ,for protective effects. When the transformer is protected ,the distance between the arrester and on the low voltage side of a distribution transformer in case any damage to the insulation caused by forward-backward over voltage 5.3 After bring the surge arrester into operating ,should be do preventive test every two years, measuring the leakage current of arrester at DA 1mA.5.4 Please don't break open the surge arresters.5.5 This product is warranted against defects in workmanship and materials .If any failure ,resulting from a defect in either workmanship or material, is occurred under the normal using within one years form the date of purchase ,we shall replace it in free of charge.